//////////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (c) 2014-present, Egret Technology.
//  All rights reserved.
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the Egret nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY EGRET AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
//  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
//  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
//  IN NO EVENT SHALL EGRET AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
//  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;LOSS OF USE, DATA,
//  OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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//  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//////////////////////////////////////////////////////////////////////////////////////

class LoadingUI extends egret.Sprite implements RES.PromiseTaskReporter {

    public constructor() {
        super();        
        // 当被添加到舞台的时候触发 (被添加到舞台,说明资源组已经加载完成)
        this.addEventListener(egret.Event.ADDED_TO_STAGE,this.createView,this);
       
    }       

    private loadlable: egret.BitmapText;
    private loadImg: egret.Bitmap // loading图标
    private shape:egret.Shape = new egret.Shape();    

    private createView(): void {
        this.width=this.stage.stageWidth;
        this.height=this.stage.stageHeight;
        //背景色
        let bg:egret.Shape = this.shape;
        bg.graphics.beginFill(0x40BDC9);
        bg.graphics.drawRect(0, 0, this.width, this.height); 
        bg.graphics.endFill();
        this.addChild(this.shape);           
        // 加载位图字体
        this.loadlable = new egret.BitmapText();
        this.loadlable.font = RES.getRes("gameFonts_fnt");;
        this.loadlable.textAlign = "center";
        this.loadlable.verticalAlign = "middle";
        this.loadlable.width = 140;
        this.loadlable.height = 80;                                    
        this.loadlable.x = this.width / 2 - this.loadlable.width / 2;
        this.loadlable.y = this.height / 2 + this.loadlable.height / 2;
        this.addChild(this.loadlable);  
        // loading图标
        this.loadImg = new egret.Bitmap();
        this.loadImg.texture=RES.getRes("loader_png");                                
        this.loadImg.anchorOffsetX = this.loadImg.width / 2;
        this.loadImg.anchorOffsetY = this.loadImg.height / 2;
        this.loadImg.x = this.width / 2;
        this.loadImg.y = this.height / 2;
        this.addChild(this.loadImg);        
    }

    public onProgress(current: number, total: number): void {
        // 计算百分比
        let per = Math.floor((current / total) * 100);
        this.loadlable.text = `${per}%`;
    }
}
